Question

A girl starts from rest, and runs at the rate of 2.5 ms-2 for 4 s. How far does she travel in this time?

Answer 1

Answer:

10m

Explanation:

we know that Distance= Speed × Time

Answer 2

Answer:

Explanation:

STARTING FROM REST IMPLIES:

INITIAL VELOCITY ,U = 0 M/S

ACCELERATION, A= 2.5 M/S²

TIME TAKEN ,T = 4 SEC

DISTANCE TRAVELLED , S= ?

ACCORDING TO NEWTON'S LAWS OF MOTION,

S = UT+1/2 AT²

S = 0*4+1/2*2.5*4*4

S = 0+2.5*2*4

S = 20 M.

THEREFORE , DISTANCE TRAVELLED = 20 M.

HOPE THIS HELPS.